Repair instrument



June 24, 1930' T. H. FOREHAND REPAIR INS'I'HQUMENT Filed April 16, 1928 Inventor Z fire fiery/7a sierra ramar- THOMAS H. FOR-EHAND, OF NASHVILLE, TENNESSEE REPAIR INSTRUMENT- Application filcd April 16, 1928. Serial No. 270,393.

This invention relates to an improved autoproportion on one side as indicated at 8 to motive appliance, in the form of an instruprovide a guide passage for the rubber band 9. went for repairing small leaks in pneumatic Incidentally, this rubber band is preferably inner tubes and tire casings therefor, for inof an especially made rubber, although an stance, where the puncture occurs from a ordinary rubber band will serve as a maketack, a nail, or other small pointed impleshiftmeans. This portion of the needle is also ment. formed with a bore lOhaving small discharge Broadly, -he invention has reference to an ports 11 from which liquid cement, gum, glue especially constructed device for inserting orthe like is forcibly ejected.

lo and anchoring a rubber band in the hole of Attached to the rubber band by tying or the inner tube and casing section. otherwise, is a pull cord 0 made of some More specifically stated, the instrument emstrong material, this being threaded through bodies an especially constructed needle the eye and brought back down along the side formed to accommodate the rubber band, and of the needle, somewhat as shown in Fig. 1.

E a pull cord which is attached to the band, to The needle is separably coupled to an-elonget-her with means associated with the base of gated cylindrical container 12, for the at the needle for supplying a limited quantity hesive cement (not shown). One end of the of gum or a suit-able adhesive to the rubber container is screw-threaded to accommodate hand to cause it to remain in place and plug the coupling 6. On the other end is a nipgi) the holes. ple 13 externally screwthreaded to accom- The specific details and their relative armodate the attaching head of an ordinary rangement and association will become more tire pump (not shown).

readily apparent from the followin descrip- There is a socket inside of the container at tion and drawings. this po nt,1nto which the screw threaded por- In the drawings: tion 14 of a small plug 15 is threaded. The

Figure 1 is a side elevational view of a replug is formed with air ports 16 and equipped pair instrument constructed in accordance with asmall spring 17 which serves to press with the present invention showing the mana ball checkvalve 18 against its seat. This ner in which the needle is forced through ball valve is normally seated, but is unseated aliner holes in the tire casing and inner tube, by the action of air pressure from the air the latter details being shown in section. pump which is attached to the nipple 13.

Figure 2 is a view in section and elevation Thepurpo'se of the air pump is to force a showing the relationship or" the rubber band limited quantity of the adhesive (not shown) which is used as a closing plug. through the passage or bore 10, the ports 11 35 Figure 3 1s a. fragmentary view showing a and the guide'8. 55 step in the operation wherein the bight por- In making the instrument ready for use,

tion of the rubber band is formed into a rethe cord C is'tied to the rubber band, 9, which turn bend and drawn outwardly through the has been previously passed through the holes in the tube and casing for finishing the guide so that it is in the position shown in repair. Fig. 2. A small quantity of suitable ad Figure at is a View similar to Figure 3, hesive-compound or material is now placed mowing the repair finished. in the container 12. Then the fitting 5 is Referring now to the drawings by referthreaded into the screw-threaded end porence numerals, it will be observed that the tion ofthe container, causing the parts to numeral 4 designates an elongated needle take the mechanical relationship represented having an eye at its outer end and a fitting 5 in Figure 2. With the details in this relaat its inner end. This fitting comprises an tion, the pointed end of the needle is forced externally screw threaded coupling 6 and an through the alined holes in the tireand tube outstanding nut-flange 7. Adjacent the fitafter the nail or other puncture implement ting, the needle is increased in cross sectional is pulled out. The needle' is pushed through 109 together.

to assume the position seen in Figure 1, at which time the nut-flange bears against the tread of the tire casing. The pullcord C is of course held in a manner to dispose the free end thereof outwardly through the punctured hole. The cord is now pulled in a manner to draw the rubber band from the position seen in Figure 2, into the position seen in Figure 1.

Now the cord and needle are simultane ously drawn baclr through the hole, and at an appropriate time, a tire pump is threaded on the nipple 13. As a general rule, one stroke of the pump serves to force suilicient adhesive through the passage 8 as well as through the port 11 and the adjoining bore 10.

The instrument is removed from the holes very slowly, pulling the needle and the cord As soon as the needle is clear of the tire (see Figure 3), the rubber is clipped oil', even with the tire, leaving the four ends of the rubber band barely exposed as shown in Fig. l, at which time, the repair is complete, and the tire ready to be inflated to the proper pressure.

It is thought that by considering the description in connection with the drawings, a clear understanding of the construction, operation, and efliciency oi' the invention will be clear. Consequently, a more lengthy description is regarded unnecessary.

Minor changes in shape, size, and re-arrangement, coming within the field of invention claimed, may be resorted to if desired.

Having thus described my invention, 1 claim as new is 1. A tire repair instrument of the class described comprising a needle adapted to be passed thru openings in a tire and inner tube produced by a puncture, a rubber band mounted upon the needle, a pull cord at tached to the band and to the needle, together with means for applying adhesive material to the rubber band.

2. A tire repair instrument of the class described comprising a needle providedv at one end with an eye for passage of a pull cord and provided at its opposite end with a guiding and retaining means for a puncture sealing element, together with means separably connected with said needle for applying adhesive to the sealing element.

3. A tire repair instrument of the class described comprising a needle provided at one end with an eye for passage of a pull cord and provided at its opposite end with a guiding and retaining means for a punc ture sealing element, together with means separably connected with said needle for appl ing adhesive to the sealing element, said means being constructed to accommodate a tire pump whose air pressureisemployed for ejecting the adhesive material.

what

4-. A tire repair instrument comprising a. cylindrical adhesive container, and a. needle separably connected with one end of the container, said needle being constructed for passage through a puncture, having an adhesive passage at its inner end, and guiding and retaining means for a puncture sealing element,

5. A tire repair instrument comprising cylindrical adhesive container, and a needle separably connected with one end of the container, said needle being constructed for passage through a puncture, having an adhesive passage at its inner end, guiding and retaining means for a puncture sealing element, said container being formed at the opposite end with a valved passage, and a pump attaching nipple.

6. A tire repair instrument of the class described comprising a cylindrical container having a screw threaded nipple at one end, a check valve at said one end, and being internally screw threaded at its opposite end, a needle provided with a coupling threaded into the last named end of the container, said needle having an adhesive passage provided. with discharge ports, and said needle being further arovided with an elongated guide for passage of a rubber band puncture sealing element.

In testimony whereof THOMAS I ailix my signature. H. FORE'HAND.

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